David E Kosiorek, DMD, PC

Kosiorek, David
David E. Kosiorek, DMD, PC 123 Dwight Road, Ste 4
Longmeadow, MA 01106
(413) 567-1300
175 State St
Belchertown, MA 01007
(413) 323-4040

Meet Dr. David Kosiorek

meet dr david kosiorek
The Smile Dr. - We make our patient's smile

“Prior to becoming an orthodontist, I practiced general dentistry for several years. During that time, I felt there was something missing in what I was doing. And although my patients were happy with their treatment I felt I needed to do more for them.

“Orthodontics as it turns was the answer. It gives me the opportunity to make positive changes in the lives of our patients. Whether it’s crooked teeth, TMJ pain, headaches, jaw misalignment, sleep apnea or snoring, the problem is analyzed and a solution provided. The excitement and gratification both for myself and my patients, especially those in braces, comes at the end of treatment when the braces are removed. It’s a new beginning for a new person. You have something now that you've never had before … a great smile and everything that comes with it.

“It’s an awesome feeling to know you’ve been a part of the process. We have the potential to change lives, and we often do. ‘We Make Our Patients Smile.’ ” — Dr. Kosiorek


Passionate about his work, Dr. David E. Kosiorek finds great reward in the positive changes he is able to make in the lives of his patients. When he meets a new patient and speaks with them, hearing about their discomfort with the appearance of their teeth and smile, he knows he will be able to improve their self-confidence and create a smile they will be glad to share.

Orthodontic treatment occurs over time, which allows Dr. Kosiorek the opportunity to really get to know those he is helping. Originally a general dentist, it was these natural connections that he was able to make with his patients and the fulfillment he received from them that drew Dr. Kosiorek to orthodontic care.

This meaning derived from working one-on-one with others is also shared by the staff members in the practice. Patients are supported, encouraged, and engaged. The day when treatment is concluded and the braces are removed, the team and Dr. Kosiorek smile as widely as the patient.

Education and continuing education

  • Doctorate of Dental Medicine, Tufts University School of Dental Medicine
  • Orthodontic specialty, U.S. Army, Ft. Meade, Maryland

Dr. Kosiorek knows that the best way he can stay up to date on advances in orthodontics is through active participation in continuing education offerings. Therefore, he avidly seeks out opportunities to learn about changing techniques, methods, and materials through orthodontic conferences, seminars, and lectures.

Professional affiliations

  • American Dental Association
  • American Association of Orthodontists
  • American Board of Orthodontics
  • Massachusetts Dental Society
  • Valley District Dental Society

Private life

Born and raised in Chicopee, Dr. Kosiorek now resides East Longmeadow with his wife Penny. They have two children: a son, Justin, and a daughter, Danielle. When not caring for his patients, Dr. Kosiorek enjoys kayaking, canoeing, hiking, skiing, or just about anything outdoors. He is also an avid gardener and orchardist who often shares the produce with his patients and neighbors. Penny is a “master gardener” and has a fondness for growing herbs and all types of flowers. She is also a fantastic cook, a likely inherited “Greek” trait.

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